Recent content by tt92

I am using a 08M picaxe with a A210DN solid-state relay to control the shutter on A Pentax DSLR and a couple of Canon DSLRs. These cameras have co-ax sockets for remote controls so the relay merely closes a switch so that the camera's battery can operate the shutter. Which is another way of...

With much advice from members of this forum I have developed several picaxe-based remote controls for various Canon and Pentax cameras. The Canon remotes access the Infrared sensor on the camera and the Pentax remotes plug into the appropriate socket on the camera. I can leave a camera...

After a fair bit of experimenting and with a lot of informed and informative help from regulars on these forums, I have a reliable Picaxe 08M based device for triggering a camera shutter. In essence, a PIR-actuated nightlight is connected to an input pin of the 08M and is sensed by readadc...

I have an application in which I want to recognise that a voltage has been applied to pin 1 of Picaxe 08M. Most times it recognises the voltage, but sometimes it doesn't. The voltage that I want to recognise can be between 2.0V and 2.5V Here is the coding ...

I would like to set up a camera in a remote pool to photograph shy birds as they drink and bathe. Commercial infrared motion detectors are usually designed to respond to humans and often make a point of the fact that birds and small animals don't trigger them. We now have five cameras that I...

I bought four 08M picaxes. I have developed a program using the little green development board AXE021, I think it is. The program runs and is safely programmed into one of the picaxes. If I try to put this program into any of the other three 08M picaxes, I get a message saying that the hardware...

This message must appear in the manuals a dozen times or so. Once a circuit is up and running, how important is the value of the resistance between serial in and 0V?

My Canon G2 camera has an I.R. remote sensor that responds to a bitstream similar to that sent by infraout. 38 KHz, bit-lengths and spacing the same. The infraout protocol won't work, because I need to send a start bit and 32 data bits. Can I send timed bursts of PWM to an I.R. LED to simulate...